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"Fuse" warniong on two zones

I have two wires going to one zone. On that zone, when I turn it on by the controller...it reads FUSE and shuts down. If I remove one wire it works fine. If I remove just the other wire it works fine. Only when I have both together do I get the FUSE reading. I have other zones with two wires that work fine. What should I test for? How can I solve this?? Any ideas. It is a Toro controller

Figure out which valve is supposed to be coming on when the fuse is blown. Disconnect one wire from the solenoid of that valve. Go back and turn that valve on again at the controller. If it blows the fuse you have crossed wires. If it doesn't you have a bad solenoid. This way you don't need a multimeter and you don't have to figure out how to use it.

You already measured the resistance of a brand-new solenoid (didn't you?) so you can disconnect the common wire from the controller, and start taking resistance measurements of the individual zones. Faulty wiring should show up here.

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Even more advanced, is to set the multimeter to AC current, and connect one lead to the controller common, and the other lead to the (already removed) system common. Current readings tell you the most, as the system will operate as normally, and intermittent problems can make themselves known, as solenoids heat up.